SHELL COMMAND DOESN'T WORK

 Problem:

 When trying to use the DOS Shell, or another function that
 uses DOS, Telix warns that it can not find a file called COM-
 MAND.COM, and aborts the function.

 Solution:

 The file COMMAND.COM is the DOS command interpreter. Telix
 must be able to find it to use many DOS functions. The loca-
 tion of COMMAND.COM is stored in an environment variable
 (explained in your DOS manual) called COMSPEC. COMSPEC is set
 at boot-up, but if you boot of a floppy and then change to an-
 other floppy or a hard disk, it will not point to the right
 place anymore. In short, make sure that COMSPEC always points
 to the location of COMMAND.COM, or that COMMAND.COM is in the
 current directory.